package Demo;

public class Car extends Bx {
    private int number;
    private double price;
    private  double money;
   public Car(int number,double price){
       this.number=number;
       this.price=price;
   }
    public  double add(){
        if(number==0){
            money=price*0.02;
        }
        return  money;
    }
}
